EFF Diceware Passphrase
Forked from Emil Bay’s excellent module of the same name.
This is a single-file ESM version of Emil’s excellent module that also removes the sodium-native dependency. Instead, it employs a bring-your-own-crypto approach where you pass a reference to Node’s default crypto module when using the module under Node and it automatically detects and uses the Web Crypto API when running in the browser.
Install
npm i @small-tech/eff-diceware-passphrase
Examples
Node.js
import crypto from 'crypto'
import EFFDicewarePassphrase from '@small-tech/eff-diceware-passphrase'
const generate = new EFFDicewarePassphrase(crypto)
const passphrase1 = generate.words(8)
const passphrase2 = generate.entropy(100)
console.log('8 words:', passphrase1.join(' '))
console.log('100 bits of entropy:', passphrase2.join(' '))(You can find this example in and run it from the examples/node folder.)
Browser
<!doctype html>
<html lang='en'>
<head>
<meta charset='UTF-8'>
<meta name='viewport' content='width=device-width, initial-scale=1.0'>
<title>EFF Diceware Passphrase</title>
</head>
<body>
<h1>EFF Diceware Passphrase Example</h1>
<ul>
<li><strong>8 words:</strong> <span id='passphrase1'></span></li>
<li><strong>100 bits of entropy:</strong> <span id='passphrase2'></span></li>
</ul>
<script type="module">
import EFFDicewarePassphrase from './eff-diceware-passphrase.min.js'
const generate = new EFFDicewarePassphrase()
const passphrase1 = generate.words(8)
const passphrase2 = generate.entropy(100)
document.getElementById('passphrase1').innerText = passphrase1.join(' ')
document.getElementById('passphrase2').innerText = passphrase2.join(' ')
</script>
</body>
</html>You can find this example (along with a copy of the minified module bundle) in the examples/browser folder.
Bundling
After you’ve installed the dev dependencies using npm i, you can build a single-file ESM bundle by running:
npm run buildOr, for the minified version:
npm run build-minifiedFind the bundles in the dist folder.
The non-minified version is 88kb in size and the minified one is 79kb. The bulk of the size comes from the EFF word list itself, which is 77kb.
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Copyright
- ⓒ 2021 Aral Balkan, Small Technology Foundation
- ⓒ 2016-2021, Emil Bay
- See LICENSE for complete list of notices.
License
ISC